Today was Kind of Bittersweet

I had a really good day today (which was nice, because the previous two kinda sucked). A REALLY good day in various different ways. I taught my last two labs of the semester (that was the bittersweet part), I went to hear some music performed in the snazzy new music center on campus, and I was offered a position TAing a brand new science course which sounds SO AMAZING. This will probably ramble a bit, so …

On the one hand, I am quite glad that this semester is nearing an end. It was a good semester, but I always like the idea of winter break. 😀 But, at the same time, I will miss my students! I loved both of my lab sections, and today saying goodbye was a little bit sad. Especially for the evening lab – a bunch of them wanted hugs on the way out the door (yes, these are COLLEGE students), and several of them hung out a while after class was done just to chat about movies and video games and whatnot. They are all so very precious, and I love them, and it’s a bit sad for the semester to be over. But I’m sure I’ll love my students next semester, too.

Which leads me into the other REALLY COOL thing – I’ve been asked to TA a brand new class that has not been offered at our school before. It’s an inter-department course for students in STEM fields (science, technology, engineering and math), and it will be project-based. Basically, I’ll help them do individual projects, mostly dealing with a local watershed, and helping them come up with their own original research ideas. A lot of one-on-one interaction and mentoring, which I LOVE. And the idea of helping to shape the lab for this new course is also REALLY REALLY exciting. It means I’m going to have a busy semester (since I’ll still be teaching one lab section of my current course as well), but I think I’m going to really enjoy it. <3 Plus, since I’m really thinking about going into teaching full time when I’m done, this will be FANTASTIC experience for that. WHOO HOO!

Biometry Presentation

Giving a short presentation tomorrow in my biometry class on my turtle research. So here, have some slides! It was actually REALLY cool to have a first stab at analyzing my preliminary data, from three field seasons. I still have one more field season before I’ll be finished with this project. But, it was COOL! I’m not yet able to answer my main question: do these turtles exhibit nest site fidelity? But I’m starting to tease apart the various factors that may influence how they decide where to nest. tumblr_mefk6lkYAQ1r5vtdno1_1280tumblr_mefk6lkYAQ1r5vtdno2_1280tumblr_mefk6lkYAQ1r5vtdno6_1280tumblr_mefk6lkYAQ1r5vtdno3_1280tumblr_mefk6lkYAQ1r5vtdno4_1280
 

Baby Turtle Release!

This is what I did last Friday. (Remember the articles I posted? Yeah)! We released the baby Western Pond Turtles (Emys marmorata) that were hatched in our lab last autumn, and raised at the Oakland Zoo. SO BIG! it was kind of sad to say goodbye to my babies (especially #201), but I sent all of them off with good wishes for happy, healthy lives, and to demonstrate their excellent fitness by having LOTS of babies. 😀

(Plus, being able to wade out into the pond is kind of the most fun thing we do all year. The water level was low this year, though. Last year, the water was up to my armpits).

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Today’s release team.

My Field Season Has Begun

Female western pond turtles (Emys marmorata): their nesting season has begun at my field site in Lake County, Calfornia. The turtle in the first photo (#222, a recapture we first encountered in 2010) nested on June 6th – and yes, that photo was taken while she was in the process of laying her eggs. And the gorgeous girl in the other photos (#225, also first captured in 2010) nested on June 7th. The turtles seem to be coming out in greater numbers about a week earlier than they did last year.

The lab at my university has been studying this population of turtles for five years now (this is my third year on the project). We’re looking at nesting behavior, including the ways in which they use the habitat – distance from tree line, or distance from the pond, and whether or not the females return to the same spot year after year to nest. We’re also looking at temperature profiles inside of the nests, because these turtles have Temperature-dependent Sex Determination (TSD), which means that sex is determined by the temperature at which the eggs incubate, rather than genetically. (Higher temperatures produce females; lower temperatures produce males, in this particular species).

June 8

Back from my first trip up to the field site this season – we’ve had five turtles out of the water – four of them have nested successfully, and we’ve put a telemetry unit on the fifth, so hopefully we’ll find out out of the water again in a couple of days. We’re off to a really good start – we only had one nest this time last year. WHOO HOO TURTLES!

CNPS Field Trip

Went on a field trip today with the local native grasslands society (California Native Plant Society), although the site we visited was already very familiar to me – it’s our Western Pond Turtle field site in Lake County, California. It was different being up there and *not* looking for turtles. I learned some things about plants (which is good; I’m ridiculously ignorant about plants), saw and heard a bunch of great birds (including pileated woodpeckers and MOUNTAIN QUAIL! Only the second time in my whole life I’ve ever seen mountain quail).

The star of the day, however, was this little ring-necked snake. Such beautiful colors. Now I’m really looking forward to the start of my field season less than a month from now.

 

Emerging Baby Turtles!

Last week, my lab partner and I went out to our field site to see if last year’s hatchlings had emerged yet from their nests. The female pond turtles lay their eggs in the early summer (June is the most active month at our site), and the eggs hatch approximately three months later. There is evidence that young don’t leave the nest, though, until after the winter, something we were able to confirm on our excursion today!

We were fortunate in being at the site at exactly the right time this year. We visited a few of the nests we’d located last summer, and found babies emerging from some of them. The sort of blurry photo shows the hole they had dug for themselves to emerge – I know it’s a crappy photo, but that really is a baby turtle inside. We also found a couple that were just in the process of coming out of the ground. It was a pretty amazing thing to witness.